Almute is a highly engineered material representing the culmination of many years of development in advanced sintering and fine-grain metal processing. Aluminum grains mixed with pre-alloyed metal powders are formed into rigid panels in a sintering furnace. Sintering allows the particles to fuse together at a temperature below their melting points; the result is a strong, durable panel that is nevertheless highly porous. It is the great porosity of Almute that gives it the ability to absorb sound.